CN215480457U - Sludge concentration system - Google Patents
Sludge concentration system Download PDFInfo
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- CN215480457U CN215480457U CN202120793563.6U CN202120793563U CN215480457U CN 215480457 U CN215480457 U CN 215480457U CN 202120793563 U CN202120793563 U CN 202120793563U CN 215480457 U CN215480457 U CN 215480457U
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- Prior art keywords
- sludge
- separation
- valve
- concentration
- pipeline
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- 239000010802 sludge Substances 0.000 title claims abstract description 133
- 238000000926 separation method Methods 0.000 claims abstract description 71
- 238000007667 floating Methods 0.000 claims abstract description 47
- 238000007872 degassing Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000010865 sewage Substances 0.000 description 6
- 238000005188 flotation Methods 0.000 description 5
- 230000008719 thickening Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006124 Pilkington process Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a sludge concentration system, which comprises a separation concentration device, a floating sludge degassing device, a sludge storage tank, a separation liquid storage tank, a floating sludge storage tank and a vacuum pump, wherein the separation concentration device is connected with the floating sludge degassing device through a pipeline; the separation and concentration device is connected with the sludge storage tank through a pipeline, and a first valve and a second valve are arranged on the pipeline; the separation liquid storage tank is communicated with the pipeline, the communication position is positioned between the first valve and the second valve, and a third valve is arranged on a passage of the separation liquid storage tank and the pipeline; the pipeline, the floating mud degassing device and the floating mud storage pool are communicated in sequence; a fourth valve is arranged on a passage of the floating mud degassing device and the pipeline, and a fifth valve is arranged on a passage of the floating mud degassing device and the floating mud storage pool; the vacuum pump is communicated with the separation and concentration device and the floating mud degassing device in sequence through a vacuum tube, and a valve six is arranged between the separation and concentration device and the floating mud degassing device on the vacuum tube. The sludge concentration system is simple and compact in structure.
Description
Technical Field
The utility model relates to the technical field of sludge treatment, in particular to a sludge concentration system.
Background
A large amount of sludge is generated in the urban sewage treatment process, and along with the increase of the generation amount of sewage, the treatment load of a sewage treatment plant is increased, so that a large amount of sludge is generated. The sludge amount produced by a municipal sewage treatment plant per day is about 0.5-1.0% (volume ratio) of the sewage treatment amount, but the cost required for sludge treatment and disposal is about equivalent to that of sewage treatment. Regardless of the treatment and disposal method, the excess activated sludge is usually first concentrated to reduce the volume of sludge to be treated, thereby facilitating the transportation of the sludge and the operation of the subsequent treatment and disposal process.
The sludge gravity concentration method utilizes the precipitability of sludge particles to produce a precipitation effect under the action of a gravity field so as to achieve the purpose of sludge concentration. The sludge floatation concentration method is to introduce a great amount of dense micro bubbles into the sludge mixed liquid to adhere the micro bubbles to sludge particles to form 'gas-sludge' flocs with integral specific gravity smaller than that of water, and the flocs float to the water surface by means of buoyancy, so as to complete solid-liquid separation and concentrate the sludge. The residual activated sludge has small floc and loose structure, the specific gravity of the residual activated sludge is close to that of water, so the sedimentation effect is very slow, and on the other hand, the adhesion of activated sludge particles and micro-bubbles is quite good, so the concentration effect by adopting the air floatation method is excellent. However, the current air flotation method mainly comprises pressurized air flotation concentration, atmospheric pressure air flotation concentration and reduced pressure air flotation concentration. Compared with the former two air floatation methods, the device for concentrating the sludge by the reduced pressure air floatation method has small occupied area and better concentration effect. At present, there has been a corresponding study on sludge air flotation concentration, in which a sealable pressure reducing container having a sludge supply port at the top and a discharge port at the lower part is disposed at a position higher than a level at which atmospheric pressure, which acts on a liquid surface sealing the lower end of a sludge discharge pipe for discharging sludge from the discharge port of the pressure reducing container and in a manner of naturally falling, is balanced with sludge pressure in the pressure reducing container. The reduced-pressure air float process does not particularly deal with the gas contained in the sludge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a compact sludge concentration system with a simplified structure, which can fully exert the sludge concentration effect, discharge the concentrated sludge more easily and continuously and efficiently perform the sludge concentration operation.
The utility model is realized by the following technical scheme:
a sludge concentration system comprises a separation concentration device, a floating sludge degassing device, a sludge storage pool, a separation liquid storage pool, a floating sludge storage pool and a vacuum pump; the bottom of the separation and concentration device is connected with the sludge storage tank through a pipeline, and a first valve and a second valve are arranged on the pipeline; the separation liquid storage pool is arranged below the separation and concentration device and is communicated with the pipeline, the communication position is positioned between the first valve and the second valve, and a third valve is arranged on a passage between the separation liquid storage pool and the pipeline (which is equivalent to the third valve which is arranged between the communication position and the separation liquid storage pool and is used for controlling the separation liquid to enter the separation liquid storage pool); the pipeline, the floating sludge degassing device and the floating sludge storage tank are sequentially communicated (and the communication position of the floating sludge degassing device and the pipeline is also positioned between the first valve and the second valve), a fourth valve is arranged on the floating sludge degassing device and the pipeline, and a fifth valve is arranged on the floating sludge degassing device and the floating sludge storage tank (specifically, the fourth valve is used for controlling floating sludge to enter the floating sludge degassing device, and the fifth valve is used for controlling degassed floating sludge to enter the floating sludge storage tank); the vacuum pump is sequentially communicated with the separation and concentration device and the floating mud degassing device through a vacuum tube, and a valve six is further arranged on the vacuum tube between the separation and concentration device and the floating mud degassing device (namely the valve six is arranged on a passage between the separation and concentration device and the floating mud degassing device). Specifically, a negative pressure state can be easily formed by a vacuum pump, solid-liquid separation and floating concentration of raw sludge can be reliably realized, and floating sludge can be smoothly conveyed to a floating sludge degassing device; the thickening system can achieve a sufficient sludge thickening effect by a simplified structure, discharge thickened sludge more easily, and can achieve a sludge thickening operation continuously and efficiently. The sludge is pumped into the separation and concentration device along with the negative pressure state, dissolved gas in the raw sludge is foamed, and the raw sludge is separated into separated sludge containing foamed gas and separated liquid, so that the solid-liquid separation of the sludge can be effectively and reliably realized, and the solid-liquid separation can be continuously and efficiently carried out under the state of no stop. Preferably, the thickening system of the present invention further comprises a floating sludge degassing device capable of degassing floating sludge having a high concentration and a high viscosity obtained by the separation thickening device, thereby enabling effective and reliable solid-gas separation into degassed sludge and gas, and at the same time, capable of increasing the sludge density and facilitating transportation and handling.
Further, the sludge concentration system also comprises a vacuum meter, the vacuum meter is arranged at the top of the separation and concentration device, and the vacuum meter is respectively communicated with the separation and concentration device and the vacuum pump; a seventh valve is arranged on a passage of the vacuum meter and the separation and concentration device; and an eighth valve is arranged on a passage between the vacuum gauge and the vacuum pump.
Further, the sludge storage tank is arranged right below the separation and concentration device, and the pipeline is vertically connected between the separation and concentration device and the sludge storage tank; the first valve is arranged close to the separation and concentration device, and the second valve is arranged close to the sludge storage tank. Preferably, the sludge storage tank is arranged right below the separation and concentration device, and the pipeline is vertically connected between the separation and concentration device and the sludge storage tank, the design enables the sludge to be vertically pumped into the separation and concentration device, dissolved gas in the sludge is foamed under a negative pressure state, and the separated sludge is vertically floated upwards along with the foamed gas, and as a result, a thicker floated separated sludge layer can be formed, and the concentration effect of the floated sludge can be improved by compacting and separating the sludge.
The utility model has the beneficial effects that:
the sludge concentration system can pump the original sludge into the separation and concentration device in the vertical direction in a vacuum state, the sludge floats upwards and is concentrated along with the foaming gas, the sludge concentration effect is fully exerted, and the concentrated sludge is discharged more easily, so that the sludge concentration operation can be continuously and efficiently implemented, and the sludge concentration system is simple and compact in structure; the sludge concentration system of the utility model can obtain floating sludge with high concentration and high viscosity, and simultaneously improve the density of the sludge, thereby facilitating the sludge transportation and treatment process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a concentrating system according to the present invention.
In the figure: 1 separation and concentration device, 2 floating mud degassing device, 3 sludge storage tank, 4 separation liquid storage tank, 5 floating mud storage tank, 6 vacuum pump, 7 valve I, 8 valve II, 9 valve III, 10 valve IV, 11 valve V, 12 valve VI, 13 vacuum meter, 14 valve VII, 15 valve eight, 16 vacuum pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, a sludge concentration system comprises a separation concentration device 1, a floating sludge degasser 2, a sludge storage tank 3, a separation liquid storage tank 4, a floating sludge storage tank 5 and a vacuum pump 6; the bottom of the separation and concentration device 1 is connected with the sludge storage tank 3 through a pipeline, and a first valve 7 and a second valve 8 are arranged on the pipeline; the separation liquid storage tank 4 is arranged below the separation and concentration device 1 and is communicated with the pipeline, the communication position is positioned between the first valve 7 and the second valve 8, and a third valve 9 is arranged on a passage between the separation liquid storage tank 4 and the pipeline (namely, the third valve 9 is arranged between the communication position and the separation liquid storage tank and is used for controlling the separation liquid to enter the separation liquid storage tank); the pipeline, the sludge degassing device 2 and the sludge storage tank 5 are sequentially communicated (and the communication position of the sludge degassing device 2 and the pipeline is also located between the first valve 7 and the second valve 8), a fourth valve 10 is arranged on the passage of the sludge degassing device 2 and the pipeline, and a fifth valve 11 is arranged on the passage of the sludge degassing device 2 and the sludge storage tank 5 (the fourth valve 10 is used for controlling sludge to enter the sludge degassing device 2, and the fifth valve 11 is used for controlling degassed sludge to enter the sludge storage tank 5); the vacuum pump 6 is sequentially communicated with the separation and concentration device 1 and the floating sludge degassing device 2 through a vacuum pipe 16, and a valve six 12 is further arranged on the vacuum pipe 16 between the separation and concentration device 1 and the floating sludge degassing device 2, namely the valve six 12 is arranged on a passage of the separation and concentration device 1 and the floating sludge degassing device 2.
Preferably, the sludge concentration system further comprises a vacuum meter 13, the vacuum meter 13 is arranged at the top of the separation and concentration device 1, and the vacuum meter 13 is respectively communicated with the separation and concentration device 1 and the vacuum pump 6; a seventh valve 14 is arranged on the passage of the vacuum meter 13 and the separation and concentration device 1; a valve eight 15 is provided in the passage between the vacuum gauge 13 and the vacuum pump 6. Preferably, the sludge storage tank 3 is arranged right below the separation and concentration device 1, and the pipeline is vertically connected between the separation and concentration device 1 and the sludge storage tank 3; the first valve 7 is arranged close to the separation and concentration device 1, and the second valve 8 is arranged close to the sludge storage tank 3.
The above-mentioned preferred embodiments of the present invention are provided for illustration only and not for the purpose of limiting the utility model. Obvious variations or modifications of the present invention are within the scope of the present invention.
Claims (3)
1. A sludge concentration system is characterized by comprising a separation concentration device (1), a floating sludge degassing device (2), a sludge storage pool (3), a separation liquid storage pool (4), a floating sludge storage pool (5) and a vacuum pump (6); the bottom of the separation and concentration device (1) is connected with the sludge storage tank (3) through a pipeline, and a first valve (7) and a second valve (8) are arranged on the pipeline; the separation liquid storage tank (4) is arranged below the separation and concentration device (1) and is communicated with the pipeline, the communication position is positioned between the first valve (7) and the second valve (8), and a third valve (9) is arranged on a passage between the separation liquid storage tank (4) and the pipeline; the pipeline, the floating sludge degassing device (2) and the floating sludge storage pool (5) are sequentially communicated, a fourth valve (10) is arranged on a passage of the floating sludge degassing device (2) and the pipeline, and a fifth valve (11) is arranged on a passage of the floating sludge degassing device (2) and the floating sludge storage pool (5); the vacuum pump (6) is sequentially communicated with the separation and concentration device (1) and the floating sludge degassing device (2) through vacuum pipes, and a valve six (12) is further arranged between the separation and concentration device (1) and the floating sludge degassing device (2) on each vacuum pipe.
2. The sludge concentration system as claimed in claim 1, further comprising a vacuum gauge (13), wherein the vacuum gauge (13) is disposed on the top of the separation and concentration device (1), and the vacuum gauge (13) is respectively communicated with the separation and concentration device (1) and the vacuum pump (6); a seventh valve (14) is arranged on a passage between the vacuum meter (13) and the separation and concentration device (1); and an eighth valve (15) is arranged on a passage between the vacuum meter (13) and the vacuum pump (6).
3. The sludge concentration system as claimed in claim 1, wherein the sludge storage tank (3) is arranged right below the separation and concentration device (1), and the pipeline is vertically connected between the separation and concentration device (1) and the sludge storage tank (3); the first valve (7) is arranged close to the separation and concentration device (1), and the second valve (8) is arranged close to the sludge storage tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120793563.6U CN215480457U (en) | 2021-04-19 | 2021-04-19 | Sludge concentration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120793563.6U CN215480457U (en) | 2021-04-19 | 2021-04-19 | Sludge concentration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215480457U true CN215480457U (en) | 2022-01-11 |
Family
ID=79774987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120793563.6U Expired - Fee Related CN215480457U (en) | 2021-04-19 | 2021-04-19 | Sludge concentration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215480457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215524A (en) * | 2021-04-19 | 2022-10-21 | 江苏大学 | Sludge concentration system and sludge concentration method |
-
2021
- 2021-04-19 CN CN202120793563.6U patent/CN215480457U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115215524A (en) * | 2021-04-19 | 2022-10-21 | 江苏大学 | Sludge concentration system and sludge concentration method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |